chore: switch to layered helmfiles

helmfile was giving us warnings because the environments where not
seperate yaml documents. Also the recommendation how to structure you
helmfile changed. There is a new layering featurte that enabled you to
share common parts (like environments ;))

infrastructure/kubernetes/helmfile.d/00-namespaces.yaml

@@ -1,14 +1,10 @@
+bases:
+  - environments.yaml
+
 repositories:
   - name: incubator
     url: https://charts.helm.sh/incubator
 
-environments:
-  default:
-  istio:
-  linkerd:
-  kuma:
-  traefik-mesh:
-
 releases:
 - name: namespaces
   chart: incubator/raw

infrastructure/kubernetes/helmfile.d/10-keycloak.yaml

@@ -1,3 +1,6 @@
+bases:
+  - environments.yaml
+
 repositories:
   - name: codecentric
     url: https://codecentric.github.io/helm-charts
@@ -6,13 +9,6 @@ repositories:
   - name: bitnami-archive-full-index
     url: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
 
-environments:
-  default:
-  istio:
-  linkerd:
-  kuma:
-  traefik-mesh:
-
 releases:
   - name: keycloak-postgresql
     namespace: hc-keycloak

infrastructure/kubernetes/helmfile.d/20-habitcentric.yaml

@@ -1,9 +1,5 @@
-environments:
-  default:
-  istio:
-  linkerd:
-  kuma:
-  traefik-mesh:
+bases:
+  - environments.yaml
 
 repositories:
   - name: bitnami-archive-full-index

infrastructure/kubernetes/helmfile.d/environments.yaml

@@ -0,0 +1,6 @@
+environments:
+  default:
+  istio:
+  linkerd:
+  kuma:
+  traefik-mesh: